I know you are OK with divorce or reconciliation at this point, but just be cautious about MC interrupting your detachment. I know you say "hope for the best, expect the worst", but it is hard to want to save a marriage as badly as you do and not be affected by the glimmer of hope MC may provide.
It is a great step initiated by your W, which is positive, but in order not to get sucked in, expect her to blow it up somehow. Better yet, look at it as a desperate attempt by your W to win you back. YOU are gone. She is now required to earn you. She is going to have to put on one hell of a show to do that.
Be very skeptical. Not saying don't do your part or be uncooperative. But set a high bar for your wife. Because there's a lady out there somewhere who would never dream of treating you the way your wife has. Your wife now has to compete with HER.
Sorry to be a wet blanket, I'm just sharing how my detachment was disrupted, and it really sucked. Takes a while to get it back.
Since your wife isn't even treating you with politeness, I just worry that she is doing MC for show. I hope I am wrong.
WAW Using God Me-43 W-40 M-14 S-11 S-9 D-7 EABomb 5/09 Separated 12/09